For our speech experiments we used a version of Wavegrad [1]} based on this implementation [2]} (under BSD-3-Clause License). We evaluate our model with high-level perceptual quality of speech measurements, PESQ [3]} and STOI [4]}. We used the standard Wavegrad method with the Gaussian diffusion process as a baseline. We use two Nvidia Volta V100 GPUs to train our models.
